Fig 1.
Flow diagram of inclusion and exclusion of the study participants.
Following application of the exclusion criteria, a final total of 12,743 normal participants and 674 participants with normal pressure open-angle glaucoma were enrolled in this study. KNHANES, Korean National Health and Nutrition Examination Survey; BMI, body mass index; IOP, intraocular pressure; A/C, anterior chamber; NTG, normal tension glaucoma; OAG, open-angle glaucoma; ARMD, age-related macular degeneration.
Table 1.
Demographics and general health characteristics of the normal and glaucomatous populations.
Fig 2.
Distribution of the estimated cerebrospinal fluid pressure (A) and trans-lamina cribrosa pressure difference (B) in normal subjects of the Korean National Health and Nutrition Examination Survey.
The weighted mean estimated cerebrospinal fluid pressure was 11.69 ± 0.04 mmHg, and the weighted mean trans-lamina cribrosa pressure difference was 2.31 ± 0.06 mmHg.
Table 2.
Odds ratios for the presence of glaucoma according to intraocular pressure and trans-lamina cribrosa pressure difference.
Table 3.
Odds ratios for the prevalence of glaucoma according to the presence of hypertension, and diabetes mellitus.
Table 4.
Association between glaucoma and actual hypertension or taking antihypertensive medication.